Support for overhead wires for railways, tramways, and the like



Apri 1 1931- c. L. DELACHAUX SUPPORT FOR OVERHEAD WIRES FOR RAILWAYS, TRAMWAYS, AND THE LIKE Filed Aug. 21, 1950 2 Sheets-Sheet l April 14, 1931. c. L. DELACHAUX 1,800,440

SUPPORT-FOR OVERHEAD WIRES FOR RAILWAYS, TRM IWAYS, AND THE LIKE Filed Aug. 21. 1930 2 Sheets-Sheet 2 ooooqo l9 oooooo\ A9 fi o o 9 0 9 W as .21,

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j unct1ons, crossings Patented Apr. 14, 1931 PATENT; oFricE- mm immwm CLARENCE LEO DELACHAUX, or GENNEvILLIEnsrnAivcE, AssrGNoR 'ro AGIERIES DE GENNEVILLIERS, ANCIENS ETABLIssE'MENTs c. DELACHAUX, or GENNEVIL- LIERS, FRANCE, A Germany or rnancn surronr ronovnnrrnan WIRES non RAILWAYS, 'rReMwAYs'Ann THE LIKE Application filed Auigustfil, 1930, Serial No. 476,904, and in France August 23, 1929.

jection of the clutch element; Now .experience has shown that these elements shde over the wire for tensions lower than those which are usual in practice.

7 My invention has for its object an anchoring-means of this type whereinthis drawback is removed through an effective anchoring of the wire, even with the most considerable tensions used.

It consists chiefly in interposing between the clutch'elements a toothed part the teeth of which engage the wire whereby the contact and anchoring are provided through a plurality of points. This toothed part -bears on the other hand against the stationary parts of the clutch through suitable slopes whereby any sliding motion of the wire inside the clutch carries along the toothed part and urges the slopes against said stationary parts whereby the teeth'are caused to engage the wire and to hold it stationary.

Moreover the toothed part is thin (about 1.5 m/m thick) and of softmetal whereby for a given tension, the toothed part is deformedat the points where it is in contact with the stationary parts.' I

Myimproved arrangement may be used not only with wires having longitudinal shoulders but also with any type of wire. In the case of a round wire or cable, the latters surrounded by two flanges as shown in Figure 4. My invention may also be used for appli cations other than anchoring such as for supfor connections, section insulators, at and the like. Obv ously restrict the applicatlon of ports,

I do not, mean to imy invention otherwise than by the wording of the appendedclaims.

I have illustrated by way of example several forms of executlon of my invention in accompanying drawlngs.

Figures 1, 2 and 3 show the invention as.

applied to anchoring means, Figure 1 being a side View partly sectional oi": the arrangement, Figure 2 a cross section and Figure 3 showing the toothed or serrated cam after a traction has been exerted on the Wire.

Figure 4i illustrates the invention as applied to a round wire or cable withoutany shoulder. 7

Figures 5 and 6 show it as applied to a connection between two w res, Figure 5 showing the several parts apart and Figure 6 being across-section of theassembly thereof;

Figure 7 is a side'view of the device applied to a section insulator. f

-Figure 8 is a perspective view of an aerial junction to which the device has-been applied.

, In the anchoring device shown in Figures 1 and 2, the clutch comprises in the usual manner two comparatively long jaw elements 1- and 2 which are secured together through the screws 3, 3', 3", 3'7, 3"". These W jaws show each'attheir lower end a longitudlnal flange 4:-5 engaging respectively one of the longitudinal recesses 6 provided un-.

derneath the shoulders of the wire or cable 7 to be anchored at the point considered. One of the j aws l for instance ends with an eye '8 serving to secure the arrangement to a suitable stationary point.

In order to space the lower end of the jaws apart, one of the jaws, say 2, is provided at its upper end throughout its length or from place to place with an inner flange 9 adapted to bear against the other jaw (Figure 2).

According to my invention, I dispose between the two jaws a wedge-shaped part 10 the lower side of which is provided with teeth 11 similar to ,those of a; saw and. directed against the direction of the traction exerted on the wire 7 as illustratedby the arrow 12 of Figure 1. This serrated wedge 10 is of soft metal and very thin (about 1.5 m/m).

The side of the part 10 opposed to the saw teeth shows a series of slopes 13 each bearing against one of the screws 3 securing the two aws together or against any suitable stationary point.

The working is as follows: the shoulder of the wire being engaged in contact with the flanges l-5 of the jaws 12 when the wire exerts a traction in the direction of the arrow 12, the part is carried along by the wire whereby its sloping surfaces are caused to bear against the screws 3. Under the action of the stresses arising thereby, the teeth engage the wire material and when their entire height has entered the wire, part 10 is deformed (Figure 3), the screws 3, 3 nesting in the notches 1e, 14 which they form in said part 10, The eitort exerted at the bottom of these notches increases the hooking action of the cam on the screws and diininishes the downwardly directed action on the wire which is thus held securely. The serrated part 10 projects slightly to the rear 15 of the jaws whereby a slight hammer blow allows the engagement with the screws to be initiated.

Figure :1 illustrates a modification applicable to the case of a. round wire having no shoulders or of a cable 7; the jaws 1 and 2 are provided with incurved extensions surrounding. almost entirely the wire or cable.

The splicing ear shown in Figures 5 and 6 comprises a steel part 16 to each end of which is secured a small plate 17 through the agency of a number of fastening screws 18, say six. According to my invention, 1 dispose 'betweenthe part 16 and eachplate 17 a serrated part 19 provided for instance with five slopes adapted to bear against five screws 18, the last or sixth screw serving only for fastening the part 16 to the'corresponding plate 17, so as toprevent the stress produced by the serrated part at the end of the splicing ear from initiating a breaking of the wire, which breaking would be comparatively easyowing tojthe oscillations of the wire it it were to be secured at the very end of the stationary aerial devices. Of course the two serrated parts are disposed in opposed directions so as to resist the tractional stresses ot the two wire strands The splicing ear is completed by a part 20, which is provided with a knob 21, serves for hanging the device and is secured to the central portion of part 16.

Figure 7 shows the device as appliedto a section insulator. This insulator comprises an insulating body 22 of rectangular shape to each end or" which is secured through the bolts 23, a bronze part 24 extending outwardly as a small grooved plate cooperating with another small grooved plate 25 for holding tightly thefwire 'Z; the plates are secured together through the agency of the screws 26.

According to my invention, I dispose between 7 each cooperating plates 2%l and 25 a serrated part. 19, suitably disposedv for resisting the traction exerted by the wire.

A clamping screw 27 is adapted to secure the feed wire in an aperture 28 of the bronze part 24. A knob 29 secured to the middle of the insulating body 22 atlords means for hanging the whole insulator assembly."

The aerial frog shown in Figure 8 comprises a main Y-shaped body 30 carrying four suspension eyes 31,32, 33, 34 which allowthe iooking on to transversal cables. Y A

The body 30 shows three grooves 35, 36, 3? along which the trolley roller is adapted to run. These grooves stop slightly before the centre of the apparatus so as to allow the switching of the roller. To each end of the grooves is secured an anchoring device 38, 39, comprising a serrated part secured to the body 30 by means of single or double plates such as 41, 42, 43. The ends of the wires 7 7, 7 engagethe inner ends'of the grooves 35, 36, 37 so as to ensure the continuity of the passage of the roller.

Las'tly, Figure 9 shows my invention as appliedto an aerial crossing.

The latter is constituted by a main 'X- shaped body ending with four arms or grooved parts 45, 46, 47, 48 along which may run the trolley roller. The grooves stop slightly ahead of the centre of the main body so as to allow the rollerto pass over either of the tracks provided. To the end of each of the four grooves is secured. throughfthe plates 49, 50, 51, 52 an anchoring "device provided with a serrated part 53, 54, 5 5, 56 ac.-

cording to my invention; Four eyes 57, 58, 4

59, 6O allow the crossing to be hung by means of transversal cables. i

in the case of a section insulator, of a frog or of a crossing, the serrated part should not ico be held by the outer clamping screw of the .cooperatingplates for the same reasons as for the splicing ears. WVhat I claim is 1. An anchoring device for the aerial wires otrailways, tramways andthe like, comprising two jaws on either side of the wire and engaging same, screws adapted to secure said jaws together, a wedge-shaped thin serrated part of soft metal dlsposed between the aws,

the teeth of said serrated part engaging the wire, and means whereby said serrated'pjart bears against parts of the jaws and: screws assembly in a. manner such that the wire, when submitted to a traction, forces the serrated part between the last mentioned parts and itself.

2. An anchoring device for the aer al wires of ra lways, tramways and the like, comprising two jaws on either side of the wireand engaging same, screws adapted to secure s ard jaws together,a wedgeshaped thin serrated part ot'isoft metal disposed between the aws, the teeth 0t said serrated part engaging. the wire and sloping parts on the upper side of said serrated part,'the sloping parts bearing against corresponding screws "of the jaw- Lee ' submitted to a traction, forces the serrated securing screws, the slopes being adapted to be deformed by the screws when the serrated part is forced between them and the Wire through the traction exerted on the latter.

3. An anchoring device for the aerial wires of railways, tramways and the like, comprising two jaws on either side of the wire and engaging same, screws adapted to secure said j aws together, a wedge-shaped thin serrated part of soft metal disposed between the jaws, the teeth of said serrated part engaging the wire, an inner flange on one jaw adapted to bear against the other on the outside of the j tloned parts and ltself.

serrated part, and means whereby said serrated part bears against parts of the jaws and screws assembly in a manner such that the wire, when submitted to a traction, forces the serrated part between the last mentioned parts and itself.

4. An anchoring device for the aerial wires of railways, tramways and the like, comprising two jaws on either side of the wire. and engaging same, screws adapted to secure said jaws together, a wedge-shaped thin serrated part of soft metal disposed between the jaws, the teeth of said serrated plate engaging the wire and sloping parts on the upper side of said serrated part adapted to bear against corresponding screw-s of the jaw-securing screws except the outer screw, the slopes being adapted to be deformed by the screws when the serrated part is forced between them and the wire through'the traction exerted on the latter. c

5. A splicing ear for connecting two aerial wires, comprising a base plate on one side of the two wires, two jaw plates cooperating 7. An aerial anchoring device for aerial wires, comprising a support, a plurality of grooved extensions for the ends of the wires, jaws secured to the outer end of said extensions, screws adapted to secure the corresponding j aw plates together, a wedge-shaped thin serrated part disposed between each pair of cooperating jaws, theteeth of said serrated part engaging the wire and means whereby said serrated part bears against parts of the jaws and screws assembly in a manner such that the wire, when submitted to a traction, forces the serrated part between last.men-

8. An aerial crossing for aerial wires, comprising a support, four grooved extensions for the ends of the wires, jaws mounted on the outer end of said extensions, screws adapted tosecure the corresponding jaw plates together, a wedge-shaped thin serrated part disposed between each pair of cooperating aws, the teeth of said serrated part engaging the wire, and means whereby said serrated part bears against parts of the jaws and screws assembly in .a manner such that the wire,

when submitted to a traction, forces the serrated part between the last mentioned parts and itself.

In testimony whereof I aflix my signature.

CLARENCE LEON DELAOHAUX.

with either end of the base plate, screws adapted to secure the jaw plates to the base plate, a wedge-shaped thinserrated part of soft metal disposed betweenthe first plate and each jaw plate, the teeth of the serrated part engaging the corresponding wire and means whereby each serrated part bears against parts of the plates and screws assembly in a manner such that the wire, when part between the last mentioned parts and itself.

6. A section insulator for aerial wires, comprising an insulating body, a conducting plate at each end thereof adapted to receive the corresponding wire, a jaw plate cooperating with each conducting plate on the other side of the wire, screws adapted to secure jaw plates to the conducting plates, a wedgeshaped thin serrated part of soft metal disposed between the first plate and each jaw plate, the teeth of the serrated part engaging the corresponding wire and. means whereby each serrated part bears against parts of the plates and screws assembly in a manner such that the wire, when submitted to a traction,

forces the serrated part between the last mentioned parts and itself. 

